test: extract tests directory out of src

Author: mcous

jest.config.js

@@ -4,23 +4,23 @@ const SVELTE_TRANSFORM_PATTERN =
   SVELTE_VERSION >= '5' ? '^.+\\.svelte(?:\\.js)?$' : '^.+\\.svelte$'
 
 export default {
-  testMatch: ['<rootDir>/src/__tests__/**/*.test.js'],
+  testMatch: ['<rootDir>/tests/**/*.test.js'],
   transform: {
     [SVELTE_TRANSFORM_PATTERN]: 'svelte-jester',
   },
   moduleFileExtensions: ['js', 'svelte'],
   extensionsToTreatAsEsm: ['.svelte'],
   testEnvironment: 'jsdom',
-  setupFilesAfterEnv: ['<rootDir>/src/__tests__/_jest-setup.js'],
+  setupFilesAfterEnv: ['<rootDir>/tests/_jest-setup.js'],
   injectGlobals: false,
   moduleNameMapper: {
-    '^vitest$': '<rootDir>/src/__tests__/_jest-vitest-alias.js',
+    '^vitest$': '<rootDir>/tests/_jest-vitest-alias.js',
+    '^@testing-library\\/svelte$': '<rootDir>/src/index.js',
   },
   resetMocks: true,
   restoreMocks: true,
   collectCoverageFrom: ['<rootDir>/src/**/*'],
   coveragePathIgnorePatterns: [
-    '/__tests__/',
     '<rootDir>/src/vite.js',
     '<rootDir>/src/vitest.js',
   ],

package.json

@@ -49,8 +49,7 @@
   ],
   "files": [
     "src",
-    "types",
-    "!__tests__"
+    "types"
   ],
   "scripts": {
     "all": "npm-run-all contributors:generate toc format types build test:vitest:* test:jest",

src/__tests__/utils.js renamed to tests/_env.js

@@ -1,6 +1,6 @@
 import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest'
 
-import { IS_JEST } from './utils.js'
+import { IS_JEST } from './_env.js'
 
 // TODO(mcous, 2024-12-08): clearing module cache and re-importing
 // in Jest breaks Svelte's environment checking heuristics.
@@ -19,7 +19,7 @@ describe.skipIf(IS_JEST)('auto-cleanup', () => {
   })
 
   test('calls afterEach with cleanup if globally defined', async () => {
-    const { render } = await import('../index.js')
+    const { render } = await import('@testing-library/svelte')
 
     expect(globalAfterEach).toHaveBeenCalledTimes(1)
     expect(globalAfterEach).toHaveBeenLastCalledWith(expect.any(Function))
@@ -35,7 +35,7 @@ describe.skipIf(IS_JEST)('auto-cleanup', () => {
   test('does not call afterEach if process STL_SKIP_AUTO_CLEANUP is set', async () => {
     process.env.STL_SKIP_AUTO_CLEANUP = 'true'
 
-    await import('../index.js')
+    await import('@testing-library/svelte')
 
     expect(globalAfterEach).toHaveBeenCalledTimes(0)
   })